Features: Full steel frame and aluminum reinforced sides for unmatched safety. Reinforced extra deep sidewalls lined with energy-absorbing foam give Rainier superior head and body protection. Comfortably seats rear-facing children from 5 to 50 lbs. Highest forward-facing capacity of any car seat in a 5-point harness: from 20-90 lbs (up to 57" in height). Converts to booster mode for children between 50 and 120 lbs. (up to 57" in height). Folds flat for travel and is FAA certified.